Merge pull request #178 from secure-77/dev

1.6.1

Merge branch 'main' of https://github.com/secure-77/Perlite

Merge pull request #135 from secure-77:dev

update to 1.5.9

fix graph size

Workflow Updates

Update README.md

php 7 compatible

Delete Dockerfile.dev